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0. If a few drops of a concentrated acid accidently spill over the hand of a student, what should be done? (NTSE Chandigarh, Stage-I, 2014-15)
Wash the hand with saline water
Wash the hand immediately with plenty of water and apply a paste of sodium hydrogen carbonate
After washing with plenty of water, apply solution of sodium hydroxide on the hand
Neutralise the acid with a strong alkali
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